Regular Closure Operators

  • Gabriele Castellini
Part of the Mathematics: Theory & Applications book series (MTA)


This chapter is devoted to the notion of regular closure operator that can well claim to be the oldest concept in the theory of categorical closure operators. As a matter of fact, regular closure operators were invented before the current notion of closure operator was formulated. In order to deal with this important concept, we need to make a further assumption.


Abelian Group Topological Space Normal Subgroup Closure Operator Full Subcategory 
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Copyright information

© Springer Science+Business Media New York 2003

Authors and Affiliations

  • Gabriele Castellini
    • 1
  1. 1.Department of Mathematics MayaguezUniversity of Puerto RicoPuerto RicoUSA

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